X-Git-Url: http://git.megacz.com/?p=ghc-hetmet.git;a=blobdiff_plain;f=compiler%2Fcmm%2FCmmLint.hs;h=32fead337ea8319048049d0a37f5159391dc3655;hp=c14ad65788506070ed07fa5b40178a1bee0205c2;hb=cb5a1b4c5fee21a2bd79bd1469684f1ff97804fa;hpb=c18358bf9b0f1aacbd9c5e8d8515c1fc5031c249

diff --git a/compiler/cmm/CmmLint.hs b/compiler/cmm/CmmLint.hs
index c14ad65..32fead3 100644
--- a/compiler/cmm/CmmLint.hs
+++ b/compiler/cmm/CmmLint.hs
@@ -153,6 +153,7 @@ lintTarget (CmmPrim {})    = return ()
 
 checkCond :: CmmExpr -> CmmLint ()
 checkCond (CmmMachOp mop _) | isComparisonMachOp mop = return ()
+checkCond (CmmLit (CmmInt x t)) | x == 0 || x == 1, t == wordWidth = return () -- constant values
 checkCond expr = cmmLintErr (hang (text "expression is not a conditional:") 2
 				    (ppr expr))